I have just upgraded my computer from Windows Vista to Windows 7. I have a problem, I cannot read the three CDs that came with my 40D and so cannot install DPP and the other Canon programs on my computer. Downloading from the Canon site is not an option as it only allows updates and requires the original software to be on my PC. I am sure I am not the first to have this problem but does anyone have a solution?ThanksKen Lindup

I'm not sure that's a common experience. I installed the Canon software on a Windows 7 notebook without a problem, but I can't say for sure exactly what version of the software I used. It may well have been more recent than the software that came with the 40D.

When you say you "can't read" the CDs I'm assuming you mean that the programs won't run or won't load. The CDs themselves should be readable under any operating system. If you actually can't even open the CDs (i.e. view the files on them), that points to a problem with your CDs, CD drive or CD drivers, not the Canon software. I presume you've tried reading other CDs and they are OK?

If you can't even open the CDs on your Win 7 machine, if you have access to another PC you could copy the CDs to a thumb drive, then read the thumb drive on your Win 7 PC.

If your CD reader and drivers are OK and nobody comes up with a simple solution, you might want to give Canon a call (1-800-OK-CANON) and see if they can help you.

There are ways of installing the new versions of the software without the old ones being present on the machine but they involve editing the registry files to fool the new software into thinking that old software is already there. However you need to know what you're doing because you can cause serious problems if you edit the registry wrong and accidentally change something you aren't supposed to.

Google something like "Install Canon camera software without CD" for a selection of articles on what you need to do.

Hi BobI found a web site that gave the registry key settings to make the Canon updating system think that the software had previously been installed. Being ultra cautious I thought that playing with the registry would be my last resort. Instead I loaded the disks on my wife's pc (Windows XP) and copied the files to a USB memory stick and installed from this with no problem. Just to check I visited the Canon site to see if I could download and install the update for Zoombrowser. No problems at all. I have no idea why my computer could not read the disks but it couldn't.Ken

Hi BobI found a web site that gave the registry key settings to make the Canon updating system think that the software had previously been installed. Being ultra cautious I thought that playing with the registry would be my last resort. Instead I loaded the disks on my wife's pc (Windows XP) and copied the files to a USB memory stick and installed from this with no problem. Just to check I visited the Canon site to see if I could download and install the update for Zoombrowser. No problems at all. I have no idea why my computer could not read the disks but it couldn't.Ken

Just found this thread and it's very timely for me. Thanks.

I'm presently in the same process - removing all photo stuff from the XP machine and now must install the software on a new Win7.